Posted
by
Hemos
on Monday March 05, 2007 @09:10AM
from the from-the-ground-up dept.

Brietech writes "Ever felt like building your own laptop from (almost literally) scratch? This is a microcontroller-based "laptop" built from the ground up from a handful of chips and other hardware found lying around. It runs a self-hosted development environment, allowing the user to write and edit programs in "Chris++" on the machine, and then compile and run them. The carpentry looks like it could use some work, but it's a neat project!"

Yes I would like to be able to build a laptop like I build a desktop. A rickedy wooden box with a 20x4 blue & white, backlit LCD is not a laptop. Well I guess you could put it on your lap, but you know what I mean.

That's something I would like to do as well - having repaired laptops several times (broken LCD fluorescent tube/hard disk drive/inverter circuit/sleep switch), a system that is completely modular would be extremely welcome. Have the LCD display detachable and could be used as a seperate LCD screen (having a video-in socket like monitors have).The problem with modern laptops is that the chassis components (brackets/heatpipes/insulators/conductors/shields/ gaskets) are munged together with the electronic com

When we all talk about "building" desktops from parts off newegg I'm a little bit reminded of "writing" games by hacking a few lines into some TAs code in an indroductory CS class. While a great many slashdotters understand what their computer is doing, this sort of thing indicates a much deeper understanding than "I need a motherboard, a processor, some RAM, and a videocard."

When we all talk about "building" desktops from parts off newegg I'm a little bit reminded of "writing" games by hacking a few lines into some TAs code in an indroductory CS class. While a great many slashdotters understand what their computer is doing, this sort of thing indicates a much deeper understanding than "I need a motherboard, a processor, some RAM, and a videocard."What are you talking about? Ive got a clean room, photolithography, etching, cleaning, doping and dicing machines in basement. You insensitive clod!

But, since your project is vaporware, let's consider a sensor package that will genuinely help your "away team" in the most hazardous environments to boost their mission completion rate. That, or to get laid. Same difference

Entry level boards from both Xilinx and Altera run about $50. Personally, I think it's worth it to spring for the $200 models since you get all kinds of useful things already on it (like RAM), but the $50 ones are out there. Here's some examples. [knjn.com]

Guess I wasnt expecting a hobby laptop. Its cool and everything. Perhaps the most impressive is this guy wrote his own programming language to go along with it. I just thought it was a little impractical. I dont know why everyones so sensitive.

"Yes I would like to be able to build a laptop like I build a desktop."

Desktops mostly use cases and mobos with standard form-factors.It is not the tradition to build modular, easily upgradeable laptops and probably never will be. The quicker an expensive laptop is obsolete the quicker manufacturers can sell a new one. Old lappies go beyond economical repair very easily unless one has a stash of organ donor machines. They are a disposable item.

Hell, my first laptop (more of a "luggable", really) cost $5. I bought it at a hamfest. It was a box of parts taken apart. I took it home, put it back together and it booted up. All that was wrong was one of the floppy drives was dead. I later sold it for $50.

He used premade components like chips and LCD displays. That's hardly building a laptop from scratch.

Building a laptop from scratch :

Step 1: You're going to need some Silicon. A lot of people would say "Just melt some rock" at this point. But that pre-supposes the existence of ready made rock, which would be cheating. So first we're going to induce a supernova in a suitable star.

...

Step 51,985: You need some plastic. Plastic is made from oil. Scour one of the planets you created in Steps 9 - 23,492 for aquatic micro-organisms. Once you've found a sufficient quantity of the little bastards, you're going to need to crush them hard. No, really hard. Now leave to stand for around 250 million years.

The same is true of any written history that no one alive today has witnessed personally. And the kind of "proof" you're looking for doesn't exist for anything.

You're assuming I require more proof than I would reasonably expect.

You missed the point. The veracity of the source is being proved using evidence available only via that source.

And yes, there's plenty of that for many Biblical events and locations in the form of archaeological findings, other recorded history, etc.

Sure, I've no doubt that many things in the Bible actually happened, albeit probably not exactly as described therein, and very often not for the reasons ascribed. But unless we know exactly what Isaiah said, and can be sure that his words were not distorted later by potentially interested parties, it's very hard to say what th

Okay, fair point; I've always accepted that the Bible was a compilation of sorts. I didn't intend this to become a theological analysis; my original criticism was of the original article and its simplistic "proof" of the truth of the Bible, which is still duff (if the guy had what you said in mind, he should have stated it explicitly, but that would have changed the whole flavour of what he was trying to put across).

As for proof whether the Isaiah book accurately reflected what Isaiah said, and whether it

While it may be nothing based on modern laptops, and the title is a bit misleading, i thought it was rather interesting.
What was interesting is that he took a proc chip, wrote his own os and compiler. It really was a DIY project.
I dont think it needed that big of a box but otherwise it was an interesting find.
I would be intrested in if we could really do laptops like we do Desktops, perhaps there is a site out there that has the parts.
but over and all this was a interesting find.

While I can appreciate the value of doing something yourself, this seems totally useless. I figure I can find HP48's for $20 if I try hard enough and those are infinitely more practical, portable, and useful. Reinventing the wheel for the sake of being the millionth guy to do it as a cube seems kinda silly.

Yeah, no joke! Why do anything "fun" if someone else has done it before? I mean, I'm sure someone else has put videos of such "fun" activities like sex, hiking and even LARPing up for free on the web somewhere. Why waste your time reinventing the fun-wheel when you could just sit back, relax, and experience the "fun" for a lot less work and time?

I'm a pretty old guy so I'm kind of fed up of waiting for the so-called ubiquitous computing era. I find that modern electronics has piss-poor interoperability, usually by being intentionally crippled. Why can't I use my camera's SD as a USB drive? It's not a camera, it's a computer with a lens. Why can't I get a true handheld computer that can act as a USB host so I can control my camera? Because the stupid application only exists on Win2K and up, not for mobile Windows, and the handheld can't act as a host anyways. Why not? It's just software. Oh but there's USB-on-the-go, a poorly documented USB mode that requires a special cable, but the connectors look the same.

So why can't there be an industry standard of handheld electronics building blocks? Instead of an iPod, how about an IMod? A cpu block that you can tack on a battery, lens, HD or CF, and headphone amp. Then you create the driving application in some sort of 90's AmigaVision drag-and-drop metaphor.

Why is it in 2007 there still is such a thing as a seperate cell phone, walkman, camera, and you need a 14 year-old with a PhD to try to get a file from one device to the other?

Money friend it all comes down to money. If things were as inter operable as you described we wouldn't need to buy as many gadgets as we do. The manufacturers aren't going to make things easy for us not in the sense you are talking about. To do that they would lose profit and heaven forbid they don't make their billions. I do feel your pain I am waiting for that day myself. I think by the time it comes I'll be a wrinkled old man and I'm only in my late twenties.

You are right that Apple's iPhone is getting closer but even with all the fancy stuff it has it is no where near as inter operable as the parent post described. I can't wait to get one myself they just look too cool and the display and touchscreen is kinda mind blowing. They however won't connect to any device other than a PC or Mac and then only with the right software. You can't just dump data on them like they are a flash drive or use them to dump pictures on from a camera or similar device.I don't th

All-in-one devices have been around for years in various forms. And you know what? They almost all suck. Theres no point in something being able to do 10 things if it does most or all of them badly. When I buy a camera I want a camera. I DONT want a camera come phone come mp3 player come something else. I want to know its been designed from the ground up as a camera and will do that job the best it can and isn't just "a computer with a lens.".Also if you're all-in-one super device breaks then you've lost ev

Well in that case I'm not sure what his issue is since if a device can be mounted as a standard USB file system (and every digital camera I've used can and so can most mp3 players - phones are another matter) then things are more convergent than he assumes.

I wish that were so, because the USB spec indicates that the devices themselves (targets like iPOD, webcams, keyboards, and the like) cannot connect together.What would be beyond cool is a topology of interconnecting commodity hardware. Picture this..

If you can do what you want with your own stuff, the big corporations can't sell you more stuff. Therefore, the big corporations deliberately keep you from using your stuff how you want to. And your 14-year-old with a Ph. D. is a dangerous criminal!

There is an interesting overview of guides to make a do-it-yourself laptop [repair4laptop.org] at Repair4Laptop. If you don't want to build it completely from scratch you can consider to make it as a so-called barebone or white box laptop. Barebones are also featured in a separate section of the overview.

Your laptop with its "modern" $(OS) spends about 99% of its CPU cycles supporting itself. What we're seeing here could be viewed as an attempt to improve the cycles-for-the-user ratio, if nothing else. If just I want to add a couple of numbers together or edit a document, do I need, or should I have to pay for, the ability to simultaneously have an MPEG movie playing in the background?

Stripping a computer back to its bare essentials is an art. Real hot rods don't have air conditioning. Real computers don't need 3GHz CPUs, 2GB of RAM, and a 500 watt power supply to present an interactive user interface.

It's sort of like when a friend or relative introduces you to their new baby and you wonder how they managed to get that giant head on that thing, only you can't really say that without hurting their feelings because everyone thinks their baby is the most beautiful one ever. In reality it's just a baby and some of them are not all that attractive, especially to people who don't have or want kids. Which the preface to my comment about that laptop: I'm sorry, but that's just one butt ugly computer.

Vintage? I'm building a Z80 single board computer on a 160x100mm ('Eurocard') PCB. The Z80 CPU (a 'classic' 40 pin DIL packaged thing, which would happily plug into a ZX Spectrum from 1982) was manufactured only 6 months ago!

The Z80 is still made. It's a great chip for small embedded projects where you want a real computer rather than a microcontroller.

It may not win in looks, or processing power, or graphics, or any thing for that matter but it was a neat project. They guy spent some real time piecing things together with chips instead of just using a mini itx board. The fact he made his own language to program it is a definite plus. It isn't something I would make myself but a nice DIY project none the less. I don't quite get what all the complaints are about even if it is a glorified calculator he built it himself. When was the last time any of you built something starting with just a handful of chips?

I did this in collage. Of course I didn't take the time to attach a keyboard, write my own program language and put it in a wooden box. Mine had to be hooked up to a computer so that I could program it and it only had 4 input buttons(you could write a program and get it to do like binary math or something). I always wondered if someone seen it on the street if it was dropped if they would think it was a bomb, small box with a tiny lcd display blinking with wires hanging out(mine had the wires hanging out

If you think that's cool, check this [homebrewcpu.com] out. A homebrew CPU made out of 74 series TTL chips. You can even telnet to it if it's not too busy:-) There are some other ones out there, but this is the one I enjoy looking at the most.

How do you go about making a plastic case? I've made DIY laptop-type case things out of wood and cardboard, housing a PDA and a PDA keyboard in the laptop form factor and I'd love to find out about some better materials for the actual casing. How could I make a plastic case for one of my little beasties? I know that Ben Heckeldorn (sp) pulls it off, but he seems to have some serious skills in this area as well as access to very specific materials and machinery needed for such work. How can I do this withou

With just a little bit bigger budget one could build something that more approximated a real laptop.There are plenty of 32 bit MCU (Microcontroller unit) with ALU (Arithmetic logic unit) that have a lot of bonus features built on the chip like: Ethernet, USB, LCD, etc.

Though, you also get some things you would not get with a general laptop like GP IO pins, pins that could detect if a device was on or not, these same pins could be used to activate/deactivate devices as well. Most would have several AD/DA (

Either way why reinvent the wheel there are plenty of embedded OS out there.

I dunno... perhaps it's *fun*?

I'm making a Z80 based single board computer right now. I get replies to my journal entries such as "You shouldn't try to make your own double sided PCBs, get a pcbpool.de to make one for you" and other such things. But these comments *completely* miss the point. I'm making my own double sided PCB because I want to make my own double sided PCB, it's really no more complex than that (and the fact it cos

That's certainly true. But, does what he has done make a story worthy of being a Slashdot story? I have done far more ambitious projects both on the hardware and on the software level and I don't get a big write up in Slashdot, No.Learning should be what it is all about I agree. But, if someone learns how to make a circular queue using a link list made up of pointers in C++ he should be happy for himself but is it something that deserves accolade from the computer community? No, I don't think so. This i

I voted this one up in absence of more interesting DIYs. I would certainly vote your project up if you made a post in your journal and submitted it. Speaking of which, Hey, way to go man! Congratulations on your project.However, if it is too advanced and ambitious, we probably won't get any interesting details about it, nor we would get any "How I did it" instructions or tips, right? Consequently, the fun factor goes down.My suggestion for maintaining structural stability: do what deep sea life does: fill t

The point I was making was that people were ragging on the guy for doing the project at all, and that he was "wasting his time". Not that the project was more worthy than some other.Have you made a web page about your project?

Have you submitted a link to Slashdot?

Slashdot's stories are generated by what people _submit_. Your project will get exposure via the FireHose if you merely write journal entries about it.

There IS room on Slashdot for projects like this, which are simple and can be taken on by beginne

At first, the idea was interesting. Then I read the details and capabilities of the device and it struck me as a huge waste of time. Buy a PSP, it is smaller, more powerful, and undoubted cheaper. That it is not as customizable (the only feature the article's system had in abundance) is more than made up for by the fact that it can be hacked, and is an order of magnitude more powerful than this post apocalyptic future version of the Osborne.

Did he have fun making it? Then it wasn't a waste of time at all. I've seen about half a dozen comments so far, like yours - which completely and utterly miss the point of the project.I'm making a Z80 based single board computer. Could I just buy a gumstix or ARM development board or whatever and do it quicker and have more CPU power? Of course. But then _I_ wouldn't be designing and making the computer. Why use a Z80? Because I like the Z80. No other reason. If I'm enjoying the project it's not in any way

Given the freedom to build any portable computer of their choosing, to build what everyone wants: a tablet computer with just an LCD and no buttons, to build exactly what everyone knows Steve Jobless is going to do in the future but no-one is doing today: a tablet computer with just an LCD, humans choose to immitate exactly the same creation that every corporation is putting out now: a folding keyboard and LCD. The lengths to which they go out of their way to immitate their corporations is unbelievable.

Ok, looks like the rest of the free world is going to bitch "u wasted ur time d00d, my fone/486/ti85 can do that!", but it looks like it was a fun project, not to mention educational. How many/.ers have actually *built* a working computer with UI from discretes? (I'm not talking about "I plugged in an IDE cable, Pentium AND videocard!")Typically, one uses a low-level language to develop an interpreter or compiler for a higher-level language. What I find most interesting about this project is its creator ha